Any 510-threaded mod (Sigelei Zmax, Vamo, ProVari etc) will easily accommodate your 19 mm
tank--they are usually 22 or 23 mm in diameter, but I don't think that is what you're looking for. There are no other eGo-class batteries that are that fat--the Aspire CF VV 1600mah and Vision Spinner II are closer to 17 mm in diameter. You can use your Emow
tanks on them, but they will not mount flush. You could also try iTaste MVP2--it's a box shaped mod and any 19 mm topper will fit.
In other words, any 510/eGo threaded device will work with your tank--but it may not look good.